Business ProfileforNortheast Oil and Propane

Bought a house in NOV 2020. In MA, you pay for all the unused fuel at sale. I thought nothing of it until one day in Apr (Months later), unannounced, NE propane shows up trying to take the tank (Full of gas) away. I called them up asking what was going on. They say they own tank, former homeowner was renting. I asked for proof, they don't have any, additionally the tank has no visible serial # on it. I couldn't believe this. I had purchased the property and presumably everything on it. So, I asked to purchase the tank. I was told I need to either rent existing tank, or speak to *** about purchasing another one or a smaller one. *** refused to sell me any tank, he would only either remove the tank, or charge me rent on the tank full of gas I paid for. I was pretty upset, continued to try to get help from NE propane. *** offered not to charge rent on existing tank. When it was empty they would come and replace the tank with a smaller one. I agreed to this. I received 2 rental charges over the period, but *** reversed them when I reached out. When out of gas in Oct 2021, I notified them I need fill. They came to house to swap and told me they couldn't because of the gas line installed location. This is the same system they had been delivering to the previous homeowner for years. So I reach out to ***, he says they would let me know next steps. They basically told me nothing they could do at this time of year. I asked him to fill their existing tank, which had been untouched, and they said no. So they left me without propane to heat my house for the winter. They did not respond to any further requests. Fast forward to now, a month ago ******* reached out about coming to swap the tank... Apparently they forgot they refused all winter. I responded to her that they should come get their tank and that the experience was bad. no response. They sent another rental bill this morning and I told them I will not pay to rent the empty tank they own and will not fill. Pleasehelp